Note 14 - Condensed Consolidating Statement of Operations (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Guarantor Subsidiaries [Member]
Revenues		$ 149,439	$ 121,718
Costs and expenses:
Costs of revenues		102,001	82,334
Selling, general and administrative expenses		27,807	23,014
Depreciation and amortization		10,753	9,411
Total costs and expenses		140,561	114,759
Income from operations		8,878	6,959
Interest and other expenses, net		7,074	6,409
Loss before income taxes		1,804	550
Provision (benefit) for income taxes		492	(594)
Net income (loss) before earnings of consolidated subsidiaries		1,312	1,144
Net income (loss) of consolidated subsidiaries		1,948	880
Net income		3,260	2,024
Revenues		149,439	121,718
Non-Guarantor Subsidiaries [Member]
Revenues		77,064	74,598
Costs and expenses:
Costs of revenues		47,125	45,842
Selling, general and administrative expenses		19,532	19,138
Depreciation and amortization		5,883	5,437
Total costs and expenses		72,540	70,417
Income from operations		4,524	4,181
Interest and other expenses, net		1,325	1,595
Loss before income taxes		3,199	2,586
Provision (benefit) for income taxes		1,251	1,706
Net income (loss) before earnings of consolidated subsidiaries		$ 1,948	$ 880
Net income (loss) of consolidated subsidiaries
Net income		$ 1,948	$ 880
Revenues		$ 77,064	$ 74,598
Parent Company [Member]
Revenues
Costs and expenses:
Costs of revenues
Selling, general and administrative expenses
Depreciation and amortization
Total costs and expenses
Income from operations
Interest and other expenses, net
Loss before income taxes
Provision (benefit) for income taxes
Net income (loss) before earnings of consolidated subsidiaries
Net income (loss) of consolidated subsidiaries		$ 1,948	$ 880
Net income		$ 1,948	$ 880
Revenues
Consolidation, Eliminations [Member]
Revenues
Costs and expenses:
Costs of revenues
Selling, general and administrative expenses
Depreciation and amortization
Total costs and expenses
Income from operations
Interest and other expenses, net
Loss before income taxes
Provision (benefit) for income taxes
Net income (loss) before earnings of consolidated subsidiaries
Net income (loss) of consolidated subsidiaries		$ (3,896)	$ (1,760)
Net income		$ (3,896)	$ (1,760)
Revenues
Revenues		$ 226,503	$ 196,316
Costs of revenues		149,126	128,176
Selling, general and administrative expenses		47,339	42,152
Depreciation and amortization	[1]	16,636	14,848
Total costs and expenses		213,101	185,176
Income from operations		13,402	11,140
Interest and other expenses, net		8,399	8,004
Loss before income taxes		5,003	3,136
Provision (benefit) for income taxes		1,743	1,112
Net income (loss) before earnings of consolidated subsidiaries		$ 3,260	$ 2,024
Net income (loss) of consolidated subsidiaries
Net income		$ 3,260	$ 2,024
Revenues		$ 226,503	$ 196,316

[1] For segment purposes, the Company defines "segment profit" as earnings before interest expenses, income taxes, depreciation and amortization, share-based compensation expenses, acquisition related transaction costs and other expenses. A consolidated reconciliation from segment profit to income from operations is included below.